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Contract OI history

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Sep 15, 2028 EXPIRATION

COST $1220.00 Call

COST280915C01220000

Latest saved OI100Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
COST $1220.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 105520 2026-10-09: 105 OI2026-10-13: 105 OI2026-10-14: 105 OI2026-10-15: 102 OI2026-10-16: 102 OI2026-10-21: 100 OI2026-10-23: 100 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

COST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1000
Oct 21, 2026100-2
Oct 16, 20261020
Oct 15, 2026102-3
Oct 14, 20261050
Oct 13, 20261050
Oct 09, 2026105No prior observation